This works great for broadband connections, especially with older routers.

Disable IpV6
The idea is basically that you disable IpV6 connections. At the moment most connections use IpV4 but this will change in the future so this “fix/ workaround” is fine at the present. We have IpV6 enabled as well as IpV4 but they conflict causing slowdown due to IpV6 trying to get a connection first.

http://en.wikipedia.org/wiki/IP_address#IP_version_4

Speedup Firefox only

In the firefox address bar type: about:config, then change

[code]network.dns disableIPv6: True[/code] (just double-click)

Completely Disable IpV6

1. Open your Gnome Terminal/ KDE Konsole and type
For Gnome
[code]gksudo gedit /etc/modprobe.d/aliases[/code]

For Xfce
[code]gksudo mousepad /etc/modprobe.d/aliases[/code]

2. Mousepad or Gedit will open and show you this file
(scroll down to see what to copy and paste)

# These are the standard aliases for devices and kernel drivers.
# This file does not need to be modified.
#
# Please file a bug against module-init-tools if a package needs a entry
# in this file.# network protocols ################################################## ########
alias net-pf-1 unix
alias net-pf-2 ipv4
alias net-pf-3 ax25
alias net-pf-4 ipx
alias net-pf-5 appletalk
alias net-pf-6 netrom
alias net-pf-7 bridge
alias net-pf-8 atm
alias net-pf-9 x25
# [color=red]1, 2, 3 new lines[/color]
alias net-pf-10 ipv6 off
alias net-pf-10 off add these three lines here.
alias ipv6 off
#[i]alias net-pf-10 ipv6 [color=red]=========comment (put #) before this line[/color][/i]
alias net-pf-11 rose
alias net-pf-12 decnet
# 13 NETBEUI
alias net-pf-15 af_key
alias net-pf-16 af_netlink
alias net-pf-17 af_packet

3. Now “Save” and “Reboot” Also:
There’s another way too: instead of changing the aliases file, create a file named bad_list in /etc/modprobe.d containing this line:
[code]alias net-pf-10 off[/code]

This method will work even if /etc/modprobe.d/aliases gets replaced at some update.

I did this and had a noticeable increase in speed

Tags: faster, Firefox, Google Earth, Internet, IpV6, Speed up